萎む
しぼむ · shibomu · JLPT N2 · verb-godan
to wither
🌸 しぼむ sounds like 'shy bomb': a shy flower bomb that slowly deflates and droops as it dies
Shibomu shares the root of 絞る (shiboru, to wring out), so a wilting flower is like a petal wrung dry of water and sagging.